the world in a different light
Made these videos years ago when I was still using an old domain name. Transferred them to the current YouTube channel in 2018. Re-posting them here as I will be using them in class soon – if the live demo fails. The first demonstration never fails to bring excitement to the class and start the lesson with a bang.
The following simulations from the Concord Consortium shows the behaviour of molecules in different states. What I like about them is that you can highlight one or two individual molecules and focus on observing their movement.
This GeoGebra interactive allows students to vary the position of the centre of gravity of a shelf in order to observe the changes of the other two force vectors. The position of the supporting cable can be adjusted too.
The ability to resolve vectors allows students to apply principle of moments to understand how the vertical components of each force vary.
This is meant for the JC1 topic of Forces.
To embed into SLS, you can use the following code:
<iframe scrolling="no" title="Equilibrium of a Wall Shelf" src="https://www.geogebra.org/material/iframe/id/xdbr7qr5/width/700/height/500/border/888888/sfsb/true/smb/false/stb/false/stbh/false/ai/false/asb/false/sri/false/rc/false/ld/false/sdz/false/ctl/false" width="700px" height="500px" style="border:0px;"> </iframe>These are two videos that I made on series and parallel bulbs. The second video is specially made to highlight the increase in brightness of the remaining bulbs when one or more bulbs is removed from its socket.
What students will learn in O levels is that the brightness of the bulbs will not change as the potential difference is a constant, being the emf itself.
Based on the conflict between what is taught and what is observed, students will be led to discuss the reason why.
If anyone is interested in getting the demonstration kit, do check out Funlearners.com.
I made this interactive tool using javascript for the teaching of DC circuits for integration with SLS as part of the IP4 Physics blended learning experience in the upcoming weeks.
The intention of this interactive is for students to do a preliminary inquiry activity to exercise what they learnt about series and parallel circuits. They can be tasked to draw out what they think the circuit diagram will be like, either on Nearpod or SLS.
Students can even notice the differences in brightness under different conditions. Questions can be designed around this as well.
Previously we used to construct little boxes with wires hidden underneath. However, due to wear and tear and with Covid-19’s safe management measures, a digital version that can be accessed via the students’ mobile devices is more suitable.
Light bulb image is adapted from Good Ware from www.flaticon.com
Switch image is adapted from Those Icons from www.flaticon.com
For a direct link to this interactive, please go to: https://www.physicslens.com/wp-content/uploads/2022/04/index.html (updated link)
To obtain the zip file for upload into SLS as an interactive media object, click here.
This is a post that exists simply to park the YouTube videos that I might need to use during a JC2 lecture on Electromagnetism.